package com.appcloner.data.repository

import android.content.Context
import android.content.Intent
import android.content.pm.PackageManager
import android.net.Uri
import android.os.Build
import androidx.core.content.FileProvider
import com.appcloner.data.model.CloneRequest
import com.appcloner.data.model.CloneResponse
import dagger.hilt.android.qualifiers.ApplicationContext
import java.io.File
import javax.inject.Inject

class ClonerRepository @Inject constructor(
    @ApplicationContext private val context: Context
) {
    
    suspend fun createClone(packageName: String, cloneName: String): Boolean {
        return try {
            // 这里实现实际的分身创建逻辑
            // 由于Android系统限制，需要使用工作配置文件或虚拟化技术
            
            // 1. 检查设备是否支持分身
            if (!isDeviceSupported()) {
                throw Exception("当前设备不支持应用分身")
            }
            
            // 2. 创建沙盒环境
            val cloneDir = createCloneDirectory(packageName, cloneName)
            
            // 3. 复制应用数据
            copyAppData(packageName, cloneDir)
            
            // 4. 创建快捷方式
            createShortcut(packageName, cloneName)
            
            true
        } catch (e: Exception) {
            false
        }
    }
    
    private fun isDeviceSupported(): Boolean {
        // 检查设备是否支持工作配置文件
        val devicePolicyManager = context.getSystemService(Context.DEVICE_POLICY_SERVICE)
            as android.app.admin.DevicePolicyManager
        
        return devicePolicyManager.isProvisioningAllowed(
            android.app.admin.DevicePolicyManager.ACTION_PROVISION_MANAGED_PROFILE
        )
    }
    
    private fun createCloneDirectory(packageName: String, cloneName: String): File {
        val cloneDir = File(context.filesDir, "clones/$packageName/$cloneName")
        if (!cloneDir.exists()) {
            cloneDir.mkdirs()
        }
        return cloneDir
    }
    
    private fun copyAppData(packageName: String, cloneDir: File) {
        // 复制应用的基础数据
        val sourceDir = File("/data/data/$packageName")
        if (sourceDir.exists()) {
            // 这里应该实现实际的文件复制逻辑
            // 注意：需要root权限才能访问其他应用的数据目录
        }
    }
    
    private fun createShortcut(packageName: String, cloneName: String) {
        // 创建桌面快捷方式
        val shortcutIntent = Intent(Intent.ACTION_VIEW).apply {
            setPackage(packageName)
            addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
        }
        
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            val shortcutManager = context.getSystemService(Context.SHORTCUT_SERVICE)
                as android.content.pm.ShortcutManager
            
            val shortcut = android.content.pm.ShortcutInfo.Builder(context, "$packageName-$cloneName")
                .setShortLabel(cloneName)
                .setLongLabel("分身: $cloneName")
                .setIntent(shortcutIntent)
                .build()
            
            shortcutManager.requestPinShortcut(shortcut, null)
        }
    }
    
    suspend fun getAppInfo(packageName: String): InstalledApp? {
        return try {
            val packageManager = context.packageManager
            val packageInfo = packageManager.getPackageInfo(packageName, 0)
            val appInfo = packageManager.getApplicationInfo(packageName, 0)
            
            InstalledApp(
                name = packageManager.getApplicationLabel(appInfo).toString(),
                packageName = packageName,
                versionName = packageInfo.versionName ?: "Unknown",
                versionCode = packageInfo.versionCode,
                icon = packageManager.getApplicationIcon(appInfo),
                isSystemApp = (appInfo.flags and android.content.pm.ApplicationInfo.FLAG_SYSTEM) != 0
            )
        } catch (e: Exception) {
            null
        }
    }
}
